package pack0617;

    public class DemoB {
       public static void main(String[] args){
            System.out.println("\"");//\"代表"
            System.out.println("\'");//\'代表'
            System.out.println("aa\taa");//\t代表制表位(对齐)
            System.out.println("aa\b66");//\b代表回退
        }
    }
